Quiz
S2A Chapter 1 Extra Exercise
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Perguntas do quiz (8)
1Round off 183.577 to 3 significant figures.
[blank_start]184[blank_end]- A184
2Round off 29.05 to 3 significant figures.
[blank_start]29.1[blank_end]- A29.1
3Round off 17 to 3 significant figures.
[blank_start]17.0[blank_end]- A17.0
4Round off 299700 to 3 significant figures.
[blank_start]300000[blank_end]- A300000
5How many significant figures are there if the following numbers are rounded off to the nearest ten?
197
[blank_start]2[blank_end]
277453.69
[blank_start]5[blank_end]
10.7
[blank_start]1[blank_end]
995
[blank_start]3[blank_end]
10000
[blank_start]4[blank_end]- A2
- B5
- C1
- D3
- E4
6Estimate the value of the following expressions by rounding off each number to 2 significant figures.
137 + 255 x 299.7
[blank_start]78140[blank_end]
25.7 x 0.0197 + 17.49
[blank_start]17.52[blank_end]
291 + 374 - 299
[blank_start]360[blank_end]- A78140
- B17.52
- C360
7Find the absolute error when the following data are rounded off to 3 significant figures.
13995.7
[blank_start]4.3[blank_end]
2997.33 cm
[blank_start]2.67[blank_end] cm
0.07745 km
[blank_start]0.00045[blank_end] km
1.777777 L
[blank_start]0.002223[blank_end] L- A4.3
- B2.67
- C0.00045
- D0.002223
8Express the actual value of a data in terms of "absolute error" and "relative error".
actual value = [blank_start]absolute error[blank_end]/[blank_start]relative error[blank_end]- Aabsolute error
- Brelative error
- Cmaximum error
- Dpercentage error
Informações
- Descrição
- Approximation and Error
- Autor
- Sin Kei Chan
- Idioma
- English
- Visualizações
- 60
- Etiquetas
- Avaliação
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